Type O Plug Adaptors
For Use in: Thailand (3 Pin earthed).
Compatibility
Compatible with: Type O sockets only. Type C plugs (unearthed) are compatible with type O sockets. Type E & F plugs will also fit but will not make an earth connection which is unsafe. Hybrid sockets that will accept American type A and B plugs are common but beware as the voltage in Thailand is 230V.
See our full plug & socket compatibility table for further information.
Other Adaptor Types
Countries Where Type O Plugs are Used
Thailand.
Frequently Asked Questions
Type O Travel Adaptors
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Exclusively: Thailand.
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A type O travel adaptor will convert your electrical plugs to a 3 pin (earthed) configuration that will fit the type O sockets found in Thailand. They do not convert the voltage or frequency of the electrical supply.
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They are very common because it is the official Thai standard socket. Hybrid sockets that accept type A, B, C and O plugs are however very common.
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Yes, many type O adaptors have integral USB, USB-C and sometimes PD ports.
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No, universal adaptors do not have a type O plug.
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Yes, they are cross compatible and can be used safely although the type C pins are slightly smaller than type O plugs (4mm vs 4.8mm). Type C plugs are 2 pin (unearthed) and are therefore not suitable for connecting earthed appliances.
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Here's a picture of a Type O plug adaptor.